Question

The angle of elevation of an unfinished tower from a point 60m away from its base is 45 degree. when the tower is completed the angle of elevation is 60 degree what is the finished height of the tower? ​

Answer 1

Answer:

42.92m

Step-by-step explanation:

tan 45=1

so the unfinished part's height is 60m

let the newly finished part be X

tan 60=$\sqrt{3}$

so,

$\sqrt{3}$=60+X/60

60$\sqrt{3}$-60=x

substitute the value of$\sqrt{3}$ as 1.732

we get X=42.92m

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